A new species of the genus Enneapterygius (Perciformes: Tripterygiidae) from Japan and the Philippines, with a synopsis and synonymy of related species
Author
Dewa, Yuna
0000-0002-8512-6782
Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University, 1 - 21 - 24 Korimoto, Kagoshima 890 - 0065, Japan.
k2533560@kadai.jp
Author
Tashiro, Satokuni
Yaeyama Field Station, Fisheries Technology Institute, Japan Fisheries Research and Education Agency, 148 Fukai-Ohta, Ishigaki, Okinawa 907 - 0451, Japan.
Author
Motomura, Hiroyuki
0000-0002-7448-2482
The Kagoshima University Museum, 1 - 21 - 30 Korimoto, Kagoshima 890 - 0065, Japan.
text
Zootaxa
2023
2023-11-17
5374
3
333
360
https://www.mapress.com/zt/article/download/zootaxa.5374.3.2/52293
journal article
278751
10.11646/zootaxa.5374.3.2
ff275bc8-83fd-4930-8393-4292023a9092
1175-5326
10150204
D8FF43DE-4A2F-4E72-A621-B0A11EEACE72
TABLE 4. Counts and morphometric measurements (as % of SL) of specimens of Enneapterygius nanus | Holotype | Paratypes | Non-type |
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| USNM 142233 | n = 4 | NSMT-P. 54443 |
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| Marshall Islands | Marshall Islands | Marshall Islands |
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| Male | Males | Male |
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| Standard length (SL; mm) | 15.8 | 16.4–17.9 | 14.3 |
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| Counts | | | |
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| Dorsal-fin rays | III, XII, 9 | III, XII–XIII, 9–10 | III, XII, 9 |
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| Anal-fin rays | I, 16 | I, 16–17 | I, 16 |
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| Pectoral-fin rays | ii + 6 + vii = 15 | iii + 5 + vii = 15 | iv + 4 + vii = 15 |
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| Scale rows in longitudinal series | 31 | 33 | damaged |
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| Pored lateral-line scales | 12 | 12–13 | 13 |
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| Notched lateral-line scales | 19–21 | 20–21 | damaged |
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| Scales above of 1st PLL | 2 | 1–2 | 2 |
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| Scales below 2nd dorsal fin | 2½ | 2–3 | 2 |
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| Scales below of 1st NLL | 2½ | 2 | 2 |
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| Circumpeduncular scales | 8 | 8 | |
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| Mandibular pore formula | 3 + 1 + 3 | 3 + 1 + 3 | 3 + 1 + 3 |
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| Measurements (% SL) | | | |
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| Body depth | 18.6 | 18.5–20.4 | 18.9 |
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| Body width | 16.4 | 15.0–17.7 | 18.2 |
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| Head length | 29.5 | 28.3–30.0 | 30.1 |
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| Snout length | 8.4 | 7.5–7.8 | 9.1 |
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| Orbit diameter | 9.4 | 10.8–10.9 | 9.8 |
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| Interorbital width | 2.4 | 2.7–3.0 | 1.4 |
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| Upper-jaw length | 10 | 10.6–11.2 | 9.8 |
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| Postorbital length | 12.5 | 13.1–13.2 | 11.9 |
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| Pre-1st-dorsal-fin length | 26.3 | 23.4–25.1 | 25.9 |
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| Pre-2nd-dorsal-fin length | 36.2 | 35.4–36.1 | 34.3 |
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| Pre-3rd-dorsal-fin length | 70.4 | 70.1–72.0 | 64.3 |
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| Pre-anal-fin length | 49.8 | 48.4–49.1 | 51.0 |
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| Anal-fin base length | 37.7 | 41.6–45.0 | 38.5 |
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| Pre-pectoral-fin length | 31.0 | 29.6–30.4 | 32.9 |
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| Pre-pelvic-fin length | 23.0 | 24.1–25.1 | 23.8 |
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| Caudal peduncle length | 12.7 | 9.8–13.6 | 11.9 |
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| Caudal peduncle depth | 8.3 | 8.2–10.6 | 7.7 |
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| 1st spine length of 1st dorsal fin | 10.0 | 8.2–10.5 | 10.5 |
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| 2nd spine length of 1st dorsal fin | 8.2 | 7.9 | 9.8 |
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| 3rd spine length of 1st dorsal fin | 8.0 | damaged | 7.0 |
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| 1st dorsal-fin base length | 5.5 | 5.1–6.9 | 5.6 |
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| 1st spine length of 2nd dorsal fin | damaged | 14.4 | 12.6 |
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| 2nd spine length of 2nd dorsal fin | damaged | 13.0 | 15.4 |
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| 3rd spine length of 2nd dorsal fin | 15.6 | 14.9 | 14.0 |
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| 2nd dorsal-fin base length | 29.2 | 32.7–32.9 | 26.6 |
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| 1st ray length of 3rd dorsal fin | damaged | 16.1 | 15.4 |
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| 2nd ray length of 3rd dorsal fin | damaged | 13.0 | 14.0 |
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| 3rd dorsal fin base length | 15.7 | 15.2 | damaged |
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| Pectoral-fin length | 31.0 | 31.8–32.8 | 14.7 |
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| 1st ray length of pelvic fin | 17.6 | 15.6–19.3 | 27.3 |
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| 2nd ray length of pelvic fin | 25.8 | 25.0–25.4 | damaged |
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